Electronic structure in the bulk state of protonic conductor CaZrO3 by resonant soft-X-ray emission spectroscopy

被引：10

作者：

Higuchi, T ^{[1
]}

Yamaguchi, S

Kobayashi, K

Takeuchi, T

Shin, S

Tsukamoto, T

机构：

[1] Tokyo Univ Sci, Dept Appl Phys, Shinjuku Ku, 1-3 Kagurazaka, Tokyo 1628601, Japan

[2] Nagoya Inst Technol, Dept Mat Sci & Engn, Showa Ku, Nagoya, Aichi 4668555, Japan

[3] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaragi 3058565, Japan

[4] RIKEN, Mikazuki, Hyogo 6795198, Japan

[5] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 2002年 / 41卷 / 8B期

关键词：

protonic conductor; In-doped CaZrO3 (CZI); electronic structure; soft-X-ray emission spectroscopy (SXES); bulk state;

D O I：

10.1143/JJAP.41.L938

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The electronic structure in the bulk state of the protonic conductor In3+-doped CaZrO3 (CZI) has been investigated by resonant soft-X-ray emission spectroscopy (SXES), which reflects the electronic structure in the bulk state. The resonant SXES spectrum of proton-doped CZI shows a proton-induced level at the top of the valence band, indicating proton exchanges with holes. This finding confirms that protons exist in the bulk state, even though a surface state may also exist.

引用

页码：L938 / L940

页数：3

共 19 条

[1] Photoemission study on protonic conductor CaZrO3:: Evidence of the exchange mechanism of proton and hole [J].

Higuchi, T ;

Tsukamoto, T ;

Tezuka, Y ;

Kobayashi, K ;

Yamaguchi, S ;

Shin, S .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 2000, 39 (2B) :L133-L136

[2] Crystal-field splitting and the on-site Coulomb energy of LaxSr1-xTiO3 from resonant soft-x-ray emission spectroscopy [J].

Higuchi, T ;

Tsukamoto, T ;

Watanabe, M ;

Grush, MM ;

Callcott, TA ;

Perera, RC ;

Ederer, DL ;

Tokura, Y ;

Harada, Y ;

Tezuka, Y ;

Shin, S .

PHYSICAL REVIEW B, 1999, 60 (11) :7711-7714

[3] Direct evidence of p-type SrTiO3 by high-resolution x-ray absorption spectroscopy -: art. no. 033201 [J].

Higuchi, T ;

Tsukamoto, T ;

Kobayashi, K ;

Yamaguchi, S ;

Ishiwata, Y ;

Sata, N ;

Hiramoto, K ;

Ishigame, M ;

Shin, S .

PHYSICAL REVIEW B, 2002, 65 (03) :1-4

[4] Hole-state and defect structure of proton conductor SrTiO3 observed by high-resolution X-ray absorption spectroscopy [J].

Higuchi, T ;

Tsukamoto, T ;

Sata, N ;

Ishigame, M ;

Kobayashi, K ;

Yamaguchi, S ;

Ishiwata, Y ;

Yokoya, T ;

Fujisawa, M ;

Shin, S .

SOLID STATE IONICS, 2000, 136 :261-264

[5] Protonic conduction in the single crystals of SrZr0.95M0.05O3 (M = Y, Sc, Yb, Er) [J].

Higuchi, T ;

Tsukamoto, T ;

Sata, N ;

Hiramoto, K ;

Ishigame, M ;

Shin, S .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 2001, 40 (6A) :4162-4163

[6] PROTONIC CONDUCTION IN THE SINGLE-CRYSTALS OF Y-DOPED SRZRO3 [J].

HUANG, HH ;

ISHIGAME, M ;

SHIN, S .

SOLID STATE IONICS, 1991, 47 (3-4) :251-255

[7]

ISRAM MS, 2000, J MATER CHEM, V10, P1027

[8]

ISRAM MS, 2001, CHEM MATER, V13, P2049

[9] Raman scattering of single-crystal SrZrO3 [J].

Kamishima, O ;

Hattori, T ;

Ohta, K ;

Chiba, Y ;

Ishigame, M .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1999, 11 (27) :5355-5365

[10] Electrical transport properties of calcium zirconate at high temperature [J].

Kobayashi, K ;

Yamaguchi, S ;

Iguchi, Y .

SOLID STATE IONICS, 1998, 108 (1-4) :355-362

← 1 2 →